CN209413859U - A kind of half way well cementation casing downward putting device - Google Patents
A kind of half way well cementation casing downward putting device Download PDFInfo
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- CN209413859U CN209413859U CN201822070217.6U CN201822070217U CN209413859U CN 209413859 U CN209413859 U CN 209413859U CN 201822070217 U CN201822070217 U CN 201822070217U CN 209413859 U CN209413859 U CN 209413859U
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- sliding sleeve
- ball seat
- central tube
- obturating plug
- closing
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Abstract
The utility model relates to the exploitations of the demand of production, detecting devices field, especially a kind of half way well cementation casing downward putting device, casing is set to towards in one end of well head, it include: outer sliding sleeve, inner sliding sleeve, wherein, the first connection structure is equipped between the inner sliding sleeve and the outer sliding sleeve, first connection structure is arranged such, so that when the inner sliding sleeve fluid pressure is greater than first threshold, first connection structure is destroyed, the first threshold is greater than the maximum resistance that described sleeve pipe is slided in wellhole, its clever structure, design is reasonable, casing is insulated by setting inner sliding sleeve and outer sliding sleeve, so that during being put into casing, casing on the downside of outer sliding sleeve is hollow, gravity setting of casing and open hole wall friction can effectively be prevented.Obviously, the utility model can effectively meet the needs of people.
Description
Technical field:
The utility model relates to oil exploitation, detecting devices field, especially a kind of half way well cementation casing downward putting device.
Background technique:
China's oil resource is mainly imbedded in underground, usually can be to underground drilling when developing to underground petroleum resources
Well, and casing is placed in drilling well, wherein part drillng operation has the job step of horizontal drilling, needs to cement the well using half way
Operation mode cement the well between drilling well wellhole and casing, well cementation when, it is necessary first to casing is transferred in horizontal well, currently,
When transferring casing, there are the following problems, after casing enters horizontal segment, due to the hardness of its own gravity, so that casing can be close to
Open hole wall is mobile, and frictional resistance is big, influences the safe and smooth tripping in of casing.Therefore, casing is transferred in horizontal segment
When, casing and open hole wall frictional movement are prevented, is current urgent problem.
Utility model content:
The utility model provides a kind of half way well cementation casing downward putting device, its clever structure, design is reasonable, by setting
It sets inner sliding sleeve and outer sliding sleeve insulates casing, so that the casing on the downside of outer sliding sleeve is hollow during being put into casing, can have
Effect prevents gravity setting of casing and open hole wall friction.Obviously, the utility model can effectively meet the needs of production.
The utility model proposes technical solution: a kind of half way well cementation casing downward putting device is set to casing towards well
In one end of mouth, comprising: outer sliding sleeve is connected with described sleeve pipe inner wall, is equipped in the lower section of the outer sliding sleeve and described sleeve pipe connects
Logical first passage；The upper section on the inside of the outer sliding sleeve, and inner sliding sleeve volume bottom end closure setting, side is arranged in inner sliding sleeve
Wall is equipped with second channel, so that when the inner sliding sleeve slides into the lower end of the outer sliding sleeve, the first passage and described
Second channel conducting；Wherein, the first connection structure, the first connection knot are equipped between the inner sliding sleeve and the outer sliding sleeve
Structure so set, so that when the inner sliding sleeve fluid pressure is greater than first threshold, destroy, described by first connection structure
First threshold is greater than the maximum resistance that described sleeve pipe is slided in wellhole.
Further, described sleeve pipe outer sheath is equipped with packer, a ball seat set is connected at the top of the outer sliding sleeve, described
Ball seat is put on, the outer sliding sleeve is equipped with the inlet for being interconnected and being connected to the packer；
A ball seat for insulating the inlet, the ball seat are equipped in ball seat set at the inlet position
Downside has sliding space, so that the inner space that the inlet is covered with the ball seat is led when the ball seat slide downward
It is logical；
Described device further includes the blocking for insulating the ball seat inner hole；
It is equipped with the second connection structure between the ball seat and ball seat set, the Fluid pressure on the upside of the ball seat is greater than the
When two threshold values, second connection structure is destroyed.
Further, a central tube is connected in the upside of ball seat set, is set on the central tube, on described sleeve pipe wall
There is interconnected drainage hole, an obturating plug is equipped in the central tube, the drainage hole is insulated, on the downside of the obturating plug
Central tube in there is sliding space so that when the obturating plug slide downward, the drainage hole and central tube inside are led
It is logical；
Wherein, it is equipped with third connection structure between the obturating plug and the central tube and/or the ball seat set, and described
The bearing area of obturating plug upper end is greater than the bearing area of the obturating plug lower end, so that slurries are between the obturating plug upper and lower side
When pressure difference value is greater than third threshold value, the third connection structure is destroyed.
Further, the lower end of the obturating plug extends at ball seat set position, and the third connection structure includes rotation
The suitable excessively described obturating plug and the ball seat cover upper screw；Wherein, the internal diameter of the ball seat set is less than the internal diameter of the central tube,
The bearing area of the obturating plug upper end is greater than the bearing area of the obturating plug lower end.
Further, the central tube on the upside of the obturating plug and between described sleeve pipe insertion be equipped with block, and in institute
It states the central tube at stop location and is equipped with the opening passed through for the block, the block is towards one end of described sleeve pipe
Circular arc chamfering setting；
A closing obturating plug, the closing obturating plug and the central tube are equipped in the outer tube at the stop location
Between be equipped with the 4th connection structure, described device further includes a rubber plug, and the rubber plug slides on the closing obturating plug, the envelope
When occluding the pressure on the upside of seat greater than four threshold values, the 4th connection structure is destroyed, and the closing obturating plug is moved to the limit
At position portion position.
Further, a limiting section, the central tube and institute are equipped in the central tube on the downside of the closing obturating plug
It states to be equipped with one between casing and close and cover, through-hole is equipped on the closing set of the drain hole location, in the drainage hole
One closing piece of insertion setting between the central tube of downside and closing set, the closing at the closing piece position cover
Equipped with the opening passed through for it, it is equipped with an accommodating chamber on the described sleeve pipe inner wall on the downside of the closing piece, the closing piece is towards institute
One end circular arc chamfering setting of central tube is stated, so that the closing piece is de- when the closing piece is moved at the accommodating chamber position
From the central tube.
Further, the described sleeve pipe internal diameter on the downside of the accommodating chamber is less than the outer diameter for closing set.
Further, one is equipped at the top of the central tube salvage pipe.
Further, be threadedly coupled between the inner sliding sleeve and ball seat set, ball seat set and the central tube it
Between be threadedly coupled, be threadedly coupled between the central tube and the salvaging pipe.
Further, first connection structure, second connection structure, the 4th connection structure are that screw connects
It connects.
The utility model provides a kind of half way well cementation casing downward putting device, its clever structure, design is reasonable, by setting
It sets inner sliding sleeve and outer sliding sleeve insulates casing, so that the casing on the downside of outer sliding sleeve is hollow during being put into casing, can have
Effect prevents gravity setting of casing and open hole wall friction.Obviously, the utility model can effectively meet the needs of production.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlargement structural representation in Fig. 1 at A；
Fig. 3 is the partial enlargement structural representation in Fig. 1 at B；
Fig. 4 is the partial enlargement structural representation in Fig. 1 at C；
In figure, 1, casing；2, outer sliding sleeve；3, inner sliding sleeve；4, packer；5, ball seat set；6, inlet；7, ball seat；8, in
Heart pipe；9, drainage hole；10, obturating plug；11, block；12, obturating plug is closed；13, limiting section；14, set is closed；15, closing piece；16, it accommodates
Chamber；17, pipe is salvaged；18, screw.
Specific embodiment:
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality
It is described in detail with novel.
The embodiments of the present invention is as shown in Figs 1-4, and a kind of half way well cementation casing downward putting device is set to casing
1 towards in one end of well head, comprising: outer sliding sleeve 2 is connected with 1 inner wall of described sleeve pipe, the lower section of the outer sliding sleeve 2 be equipped with
The first passage that described sleeve pipe 1 is connected to；The upper section of 2 inside of outer sliding sleeve, and 3 volume bottom of the inner sliding sleeve is arranged in inner sliding sleeve 3
End seal closes setting, side wall is equipped with second channel, so that when the inner sliding sleeve 3 slides into the lower end of the outer sliding sleeve 2, it is described
First passage and second channel conducting；Wherein, the first connection knot is equipped between the inner sliding sleeve 3 and the outer sliding sleeve 2
Structure, first connection structure is so set, so that when 3 fluid pressure of the inner sliding sleeve is greater than first threshold, and described the
One connection structure is destroyed, and the first threshold is greater than the maximum resistance that described sleeve pipe 1 is slided in wellhole.
When the utility model is used, will be connected between inner sliding sleeve 3 and outer sliding sleeve 2 by the first connection structure first, so
Outer sliding sleeve 2 is connected with 1 inner wall of casing afterwards, so that two parts up and down will be separated by inner sliding sleeve 3 and outer sliding sleeve 2 in casing 1,
Then the new casing 1 for installing downward putting device is put into the old casing 1 for having completed well cementation, then transfers new casing 1,
Keep new casing 1 mobile；When transferring new casing 1, due to will be separated in new casing 1 between outer sliding sleeve 2 and inner sliding sleeve 3, so that
The new casing 1 of 1 downside of outer tube is in hollow state, so that not having slurries in 1 hollow section of casing, compared to existing skill
In art, the mode of slurries is all had in entire casing 1,1 section of self weight of casing in drilling well open-hole is smaller, can be in drilling well open-hole
It floats and moves ahead in slurries, can effectively prevent from being newly put into the frictional movement between drilling well open-hole wall when moving of casing 1, guarantee set
What pipe 1 was transferred goes on smoothly；
In the decentralization of new casing 1 to setting position, after completing decentralization, since new casing 1 no longer moves, so that inner sliding sleeve 3
Slurry pressure in the casing 1 of upside becomes larger, and well head builds the pressure, and the Fluid pressure in 3 upside of inner sliding sleeve is greater than first threshold
When, the first connection structure is destroyed, and inner sliding sleeve 3 is badly in need of being moved downward to the lower end of outer sliding sleeve 2, so that first passage and second leads to
It is connected between road, the slurries of 3 upside of inner sliding sleeve can flow into lower side space, so that new casing 1 is connected, not influence subsequent slurry
Liquid stream is dynamic.
Wherein, in the present embodiment, first passage is the through-hole being arranged on 2 side wall of outer sliding sleeve, in 2 through-hole of outer sliding sleeve
There is gap between 1 inner wall of position outer sliding sleeve 2 and casing, so that deriving from the slurries of first passage outflow can flow in casing 1,
Second channel is the through-hole being arranged on 3 side wall of inner sliding sleeve.
Further optimization place is that 1 outer sheath of described sleeve pipe is equipped with packer 4, connects at the top of the outer sliding sleeve 2
Connect ball seat set 5, be equipped on ball seat set 5, on the outer sliding sleeve 2 be interconnected and be connected to the packer 4 into
Liquid mouth 6；
It is equipped with a ball seat 7 for insulating the inlet 6 in ball seat set 5 at 6 position of inlet, it is described
There is sliding space, so that the inlet 6 is interior with ball seat set 5 when 7 slide downward of ball seat on the downside of ball seat 7
The conducting of portion space；
Described device further includes the blocking for insulating 7 inner hole of ball seat；
The second connection structure is equipped between the ball seat 7 and ball seat set 5, the Fluid pressure of 7 upside of ball seat is big
When the second threshold values, second connection structure is destroyed.
By the way that packer 4 is arranged on the outside of casing 1, it can prevent slurries from arbitrarily expanding by injecting slurries in packer 4
It dissipates, Fast Filling between the casing 1 being newly put into and open-hole wall can be made, the casing 1 being newly put into can be quickly fixed, make simultaneously
It obtains and keeps concentricity between the casing 1 being newly put into and well bore.In order to which when transferring casing 1, slurries do not enter in packer 4,
In the present invention, 5 are covered by setting ball seat to open the packing of inlet 6 of packer 4, transfer by casing 1 to specified
Behind position, by being put into blocking in casing 1 so that blocking is located on blocking seat 7, formed at 7 position of blocking seat every
Shelves, when further Dian improves the slurry pressure of 5 upside of blocking cover for seat, the Fluid pressure of 7 upside of blocking seat is greater than second threshold
When, the second connection structure is destroyed, and ball seat covers 5 slide downwards, and inlet 6 is exposed, starts to inject slurries into packer 4.
In the present embodiment, packer 4 is set using the rubber bag for being set in 1 outside of casing, the inlet 6 of packer 4
It is placed at 1 tube wall of casing of 4 upside of packer.
Further, a central tube 8 is connected in the upside of ball seat set 5, on the central tube 8,1 wall of described sleeve pipe
It is equipped with interconnected drainage hole 9, an obturating plug 10 is equipped in the central tube 8, the drainage hole 9 is insulated, in institute
Stating has sliding space in the central tube 8 of the downside of obturating plug 10 so that when 10 slide downward of obturating plug, the drainage hole 9 with
It is connected on the inside of the central tube 8；
Wherein, third connection structure is equipped between the obturating plug 10 and the central tube 8 and/or the ball seat set 5, and
The bearing area of 10 upper end of obturating plug is greater than the bearing area of 10 lower end of obturating plug, so that slurries are on the obturating plug 10
When pressure difference value between lower end is greater than third threshold value, the third connection structure is destroyed.
It cements the well in order to slip casting between the casing 1 and drilling well hole wall to 4 upside of packer, in the present embodiment, leads to
Crossing drainage hole 9 can directly be discharged into the slurries in casing 1 to 1 outside of casing, in order to infuse when transferring casing 1, into packer 4
Prevent drainage hole 9 from flowing out slurries when entering slurries, in the present invention, by the way that obturating plug 10 is arranged at 9 position of drainage hole, right
After completing slip casting in packer 4, continue to pressurize, since the bearing area of 10 upper end of obturating plug is greater than the pressure-bearing surface of 10 lower end of obturating plug
Product, so that there is downward pressure difference value on obturating plug 10, when the pressure difference value of 10 upper and lower ends of obturating plug is greater than third threshold value, the
Three connection structures are destroyed, and obturating plug 10 moves down, and leak out drainage hole 9, and the slurries in casing 1 are discharged.
Wherein, in order to which when transferring casing 1, when destroying the first connection structure, destroying the second connection structure, third connection is tied
Structure does not occur along bad, and third threshold value is greater than second threshold and is greater than first threshold.
Further specifically, the lower end of the obturating plug 10 extends to the ball seat and covers at 5 positions, the third connection
Structure includes the screw 18 screwed on the obturating plug 10 and ball seat set 5；Wherein, the internal diameter of the ball seat set 5 is less than
The internal diameter of the central tube 8, the bearing area of 10 upper end of obturating plug are greater than the bearing area of 10 lower end of obturating plug.Thus lead to
The inland river for crossing ball seat set 5 is less than the internal diameter of central tube 8, under the premise of obturating plug 10 can be made to keep internal diameter constant, so that obturating plug
The bearing area of 10 lower end is less than the bearing area of 10 upper end of obturating plug.
Further optimization place is, embedding between the central tube 8 and described sleeve pipe 1 of 10 upside of obturating plug
Enter to be equipped with block 11, and is equipped with the opening passed through for the block 11, institute on the central tube 8 at 11 position of block
One end circular arc chamfering for stating block 11 towards described sleeve pipe 1 is arranged；
A closing obturating plug 12, the closing obturating plug 12 and institute are equipped in the outer tube 1 at 11 position of block
It states and is equipped with the 4th connection structure between central tube 8, described device further includes a rubber plug, and the rubber plug slides into the closing obturating plug
On 12, when the pressure of 12 upside of closing obturating plug is greater than four threshold values, the 4th connection structure is destroyed, the closing obturating plug
12 are moved at 13 position of limiting section.
It is equipped with block 11 from there through what is be embedded between central tube 8 and casing 1, realizes phase between central tube 8 and casing 1
Even, in order to take out each component inside casing 1 after the completion of casing 1 is put into completion, well cementation, in the present embodiment,
Provided with closing obturating plug 12, in normal state, closing obturating plug 12 pushes against block 11, so that phase between central tube 8 and casing 1
Even, after completing casing 1 and being put into, cement the well, by being put into rubber plug, so that rubber plug is blocked obturating plug 12 is closed, in closing obturating plug 12
Under the action of the slurry pressure of upside, when closing the pressure on obturating plug 12 greater than four threshold values, the 4th connection structure is destroyed, closing cock
Seat 12 downlinks, at this point, due to block 11 towards one end of casing 1 in circular arc chamfering be arranged, block 11 lose closes obturating plug 12
Limitation after be extruded so that separated between central tube 8 and casing 1, at this point it is possible to by fishing tool by central tube 8
It proposes.
Further, a limiting section 13, the center are equipped in the central tube 8 of 12 downside of closing obturating plug
It is equipped with one between pipe 8 and described sleeve pipe 1 and closes set 14, is equipped with through-hole on the closing set 14 at 9 position of drainage hole,
Insertion one closing piece 15 of setting between the central tube 8 and closing set 14 of 9 downside of drainage hole, in the closing piece
Closing set 14 at 15 positions is equipped with the opening passed through for it, on 1 inner wall of described sleeve pipe of 15 downside of closing piece
Equipped with an accommodating chamber 16, one end circular arc chamfering of the closing piece 15 towards the central tube 8 is arranged, so that the closing piece 15
When being moved at 16 position of accommodating chamber, the closing piece 15 is detached from the central tube 8.
In order to which drainage hole 9 can be closed after slip casting, in the present embodiment, set 14 is closed by being provided with, is being closed
When 12 slide downward of obturating plug, closing obturating plug 12 touches limiting section 13 and central tube 8 is driven to move together, due to central tube 8 and closes
It closes insertion between set 14 and is equipped with closing piece 15, to drive closing set 14 to move together, so that closing covers upper through-hole and row
Fluid apertures 9 is staggered, and closes drainage hole 9, when closing piece 15 is moved at 16 position of accommodating chamber, since closing piece 15 is towards the one of center of gravity pipe
End is arranged in circular arc chamfering, and after the limitation for losing casing 1, closing piece 15 is moved in accommodating chamber 16, and off center pipe 8,
And then closing set can be stayed in casing 1, drainage hole 9 is blocked when taking out central tube 8.
In the present embodiment, limiting section 13 is the step being arranged on the downside of closing set at central tube 8.
Closing set moves down in order to prevent, and 1 internal diameter of described sleeve pipe of 16 downside of accommodating chamber is covered less than the closing
14 outer diameter.
Further, component each in casing 1 is salvaged for convenience, is equipped with one at the top of the central tube 8 and salvages pipe
17。
Further, for the ease of placing each component, in the present embodiment, the inner sliding sleeve 3 and ball seat set 5 it
Between be threadedly coupled, is threadedly coupled between ball seat set 5 and the central tube 8, between the central tube 8 and the salvaging pipe 17
It is threadedly coupled.
Certainly, between inner sliding sleeve 3 and ball seat set 5 can also integrally connected, alternatively, ball seat set 5 and center
Integrally connected between pipe 8, alternatively, integrally connected connects between the central tube 8 and the salvaging pipe 17
Further specifically, first connection structure, second connection structure, the 4th connection structure are equal
For the connection of screw 18.
Above-mentioned specific embodiment cannot function as the limitation to scope of protection of the utility model, for the skill of the art
For art personnel, any alternate modification or transformation made to the utility model embodiment all fall within the guarantor of the utility model
It protects in range.
Place is not described in detail for the utility model, is the well-known technique of those skilled in the art of the present technique.
Claims (9)
1. a kind of half way well cementation casing downward putting device, casing is set to towards in one end of well head characterized by comprising
Outer sliding sleeve is connected with described sleeve pipe inner wall, is equipped with the first passage being connected to described sleeve pipe in the lower section of the outer sliding sleeve；
Inner sliding sleeve, is arranged in the upper section on the inside of the outer sliding sleeve, and inner sliding sleeve volume bottom end closure setting, side wall are equipped with the
Two channels, so that the first passage and the second channel are led when the inner sliding sleeve slides into the lower end of the outer sliding sleeve
It is logical；
Wherein, the first connection structure is equipped between the inner sliding sleeve and the outer sliding sleeve, first connection structure is so set
It sets, so that first connection structure is destroyed, the first threshold when inner sliding sleeve fluid pressure is greater than first threshold
The maximum resistance slided in wellhole greater than described sleeve pipe.
2. a kind of half way well cementation casing downward putting device according to claim 1, it is characterised in that: described sleeve pipe outer sheath
Equipped with packer, a ball seat set is connected at the top of the outer sliding sleeve, ball seat set is upper, is equipped on the outer sliding sleeve and mutually interconnects
Inlet that is logical and being connected to the packer；
A ball seat for insulating the inlet, the ball seat downside are equipped in ball seat set at the inlet position
With sliding space, so that the inlet is connected with the inner space that the ball seat covers when the ball seat slide downward；
Described device further includes the blocking for insulating the ball seat inner hole；
The second connection structure is equipped between the ball seat and ball seat set, the Fluid pressure on the upside of the ball seat is greater than the second valve
When value, second connection structure is destroyed.
3. a kind of half way well cementation casing downward putting device according to claim 2, it is characterised in that: in ball seat set
Upside connects a central tube, on the central tube, interconnected drainage hole is equipped on described sleeve pipe wall, in the central tube
It is inside equipped with an obturating plug, the drainage hole is insulated, there is sliding space in the central tube on the downside of the obturating plug, so that institute
When stating obturating plug slide downward, be connected on the inside of the drainage hole and the central tube；
Wherein, third connection structure, and the obturating plug are equipped between the obturating plug and the central tube and/or the ball seat set
The bearing area of upper end is greater than the bearing area of the obturating plug lower end, so that slurries are to the pressure between the obturating plug upper and lower side
When difference is greater than third threshold value, the third connection structure is destroyed.
4. a kind of half way well cementation casing downward putting device according to claim 3, it is characterised in that: the lower end of the obturating plug
It extends at ball seat set position, the third connection structure includes screwing to cover upper spiral shell across the obturating plug and the ball seat
Nail；Wherein, the internal diameter of the ball seat set is less than the internal diameter of the central tube, and the bearing area of the obturating plug upper end is greater than the plug
The bearing area of seat lower end.
5. a kind of half way well cementation casing downward putting device according to claim 4, it is characterised in that: on the upside of the obturating plug
The central tube and described sleeve pipe between insertion be equipped with block, and on the central tube at the stop location be equipped with supply
One end circular arc chamfering of the opening that the block passes through, the block towards described sleeve pipe is arranged；
It is equipped with a closing obturating plug in the described sleeve pipe at the stop location, is set between the closing obturating plug and the central tube
There is the 4th connection structure, is equipped with a limiting section in the central tube on the downside of the closing obturating plug, described device further includes one
Rubber plug, the rubber plug slide on the closing obturating plug, when the pressure on the upside of the closing obturating plug is greater than four threshold values, described the
Four connection structures are destroyed, and the closing obturating plug is moved at the limiting section position；It is set between the central tube and described sleeve pipe
There is a closing set, be equipped with through-hole on the closing set of the drain hole location, in described on the downside of the drainage hole
One closing piece of insertion setting between heart pipe and closing set, the closing at the closing piece position covers to be equipped with to be passed through for it
Opening, be equipped with an accommodating chamber on the described sleeve pipe inner wall on the downside of the closing piece, the closing piece towards the central tube one
Circular arc chamfering setting is held, so that the closing piece is detached from the central tube when closing piece is moved at the accommodating chamber position.
6. a kind of half way well cementation casing downward putting device according to claim 5, it is characterised in that: on the downside of the accommodating chamber
Described sleeve pipe internal diameter be less than it is described close set outer diameter.
7. a kind of half way well cementation casing downward putting device according to claim 5, it is characterised in that: in the central tube
Top is equipped with one and salvages pipe.
8. a kind of half way well cementation casing downward putting device according to claim 7, it is characterised in that: the inner sliding sleeve and institute
It states and is threadedly coupled between ball seat set, is threadedly coupled between the ball seat set and the central tube, the central tube and the salvaging
It is threadedly coupled between pipe.
9. a kind of half way well cementation casing downward putting device according to claim 5, it is characterised in that: the first connection knot
Structure, second connection structure, the 4th connection structure are screw connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070217.6U CN209413859U (en) | 2018-12-10 | 2018-12-10 | A kind of half way well cementation casing downward putting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070217.6U CN209413859U (en) | 2018-12-10 | 2018-12-10 | A kind of half way well cementation casing downward putting device |
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| Publication Number | Publication Date |
|---|---|
| CN209413859U true CN209413859U (en) | 2019-09-20 |
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ID=67937586
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|---|---|---|---|
| CN201822070217.6U Active CN209413859U (en) | 2018-12-10 | 2018-12-10 | A kind of half way well cementation casing downward putting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255376A (en) * | 2020-04-01 | 2020-06-09 | 德州众凯石油科技有限公司 | Extension casing running device of coal bed gas horizontal well |
| CN112177565A (en) * | 2020-09-27 | 2021-01-05 | 德州众凯石油科技有限公司 | Salvaging type drilling-plug-free cementing well completion device |
| CN112377107A (en) * | 2020-09-07 | 2021-02-19 | 中油国家油气钻井装备工程技术研究中心有限公司 | Rotary injection integrated casing running device |
-
2018
- 2018-12-10 CN CN201822070217.6U patent/CN209413859U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255376A (en) * | 2020-04-01 | 2020-06-09 | 德州众凯石油科技有限公司 | Extension casing running device of coal bed gas horizontal well |
| CN112377107A (en) * | 2020-09-07 | 2021-02-19 | 中油国家油气钻井装备工程技术研究中心有限公司 | Rotary injection integrated casing running device |
| CN112377107B (en) * | 2020-09-07 | 2022-10-04 | 中油国家油气钻井装备工程技术研究中心有限公司 | Rotary injection integrated casing running device |
| CN112177565A (en) * | 2020-09-27 | 2021-01-05 | 德州众凯石油科技有限公司 | Salvaging type drilling-plug-free cementing well completion device |
| CN112177565B (en) * | 2020-09-27 | 2021-05-14 | 德州众凯石油科技有限公司 | Salvaging type drilling-plug-free cementing well completion device |
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